Module performance 

Performance monitoring and metrics collection

Integrates with Prometheus to track:

• Fingerprint computation latency
• Cache hit/miss rates
• Query execution times
• Memory usage
• Throughput metrics

Structs

CacheStats

Cache performance statistics

FingerprintStats

Fingerprint computation statistics

PerformanceMetrics

Performance metrics collector

PerformanceTimer

Performance timer for automatic metric recording

QueryStats

Query execution statistics

ThroughputStats

Throughput statistics

Enums

MetricType

Type of metric being timed